WHITE MOUNTAINS INSURANCE GROUP LTD

CIK: 0000776867SEC EDGAR →

Portfolio Value

$261.9B

Holdings

2

As of

Q4 2025

New Positions

0

Closed Positions

0

Portfolio Value History

Top 10 Holdings

RankStockSharesValue% of Portfolio
1
MAX

MEDIAALPHA INC

17,856,614$231.2B
88.28%
2
SPY

SPDR S&P 500 ETF TR

45,000$30.7B
11.72%

Quarterly Changes

Top Buys

SPYNEW
$30.7B

Top Sells

No sells this quarter

New Positions (1)

SPY
$30.7B · 45K shares

Sector Breakdown

Sector# HoldingsValue%
Communication Services1$231.2B88.3%
Financial Services1$30.7B11.7%